diff options
| author | Michael Biebl <biebl@debian.org> | 2014-07-06 02:16:10 +0200 |
|---|---|---|
| committer | Michael Biebl <biebl@debian.org> | 2014-07-06 02:16:10 +0200 |
| commit | 33491bc4279481db8ae47213e34a6d695a0e8830 (patch) | |
| tree | 097d2b0fdff3fae6885381ae5e57a182cd8cbbba /src/rdisc | |
| parent | 59c3714a494c3b3765657c0551ad82842d98a7d2 (diff) | |
Imported Upstream version 0.9.10.0 upstream/0.9.10.0
Diffstat (limited to 'src/rdisc')
| -rw-r--r-- | src/rdisc/Makefile.am | 1 | ||||
| -rw-r--r-- | src/rdisc/Makefile.in | 753 | ||||
| -rw-r--r-- | src/rdisc/nm-fake-rdisc.c | 134 | ||||
| -rw-r--r-- | src/rdisc/nm-fake-rdisc.h | 49 | ||||
| -rw-r--r-- | src/rdisc/nm-lndp-rdisc.c | 700 | ||||
| -rw-r--r-- | src/rdisc/nm-lndp-rdisc.h | 49 | ||||
| -rw-r--r-- | src/rdisc/nm-rdisc.c | 191 | ||||
| -rw-r--r-- | src/rdisc/nm-rdisc.h | 139 | ||||
| -rw-r--r-- | src/rdisc/tests/Makefile.am | 36 | ||||
| -rw-r--r-- | src/rdisc/tests/Makefile.in | 755 | ||||
| -rw-r--r-- | src/rdisc/tests/rdisc.c | 80 |
11 files changed, 2887 insertions, 0 deletions
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+ + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/src/rdisc/nm-fake-rdisc.c b/src/rdisc/nm-fake-rdisc.c new file mode 100644 index 00000000..bdd207ca --- /dev/null +++ b/src/rdisc/nm-fake-rdisc.c @@ -0,0 +1,134 @@ +/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */ +/* nm-fake-rdisc.c - Fake implementation of router discovery + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Copyright (C) 2013 Red Hat, Inc. + */ + +#include <string.h> +#include <arpa/inet.h> + +#include "nm-fake-rdisc.h" + +#include "nm-logging.h" + +#define debug(...) nm_log_dbg (LOGD_IP6, __VA_ARGS__) +#define warning(...) nm_log_warn (LOGD_IP6, __VA_ARGS__) +#define error(...) nm_log_err (LOGD_IP6, __VA_ARGS__) + +#define NM_FAKE_RDISC_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_FAKE_RDISC, NMFakeRDiscPrivate)) + +G_DEFINE_TYPE (NMFakeRDisc, nm_fake_rdisc, NM_TYPE_RDISC) + +/******************************************************************/ + +NMRDisc * +nm_fake_rdisc_new (int ifindex, const char *ifname) +{ + NMRDisc *rdisc = g_object_new (NM_TYPE_FAKE_RDISC, NULL); + + rdisc->ifindex = ifindex; + rdisc->ifname = g_strdup (ifname); + rdisc->max_addresses = NM_RDISC_MAX_ADDRESSES_DEFAULT; + rdisc->rtr_solicitations = NM_RDISC_RTR_SOLICITATIONS_DEFAULT; + rdisc->rtr_solicitation_interval = NM_RDISC_RTR_SOLICITATION_INTERVAL_DEFAULT; + + return rdisc; +} + +static void +delayed_start (NMRDisc *rdisc) +{ + int changed = + NM_RDISC_CONFIG_GATEWAYS | NM_RDISC_CONFIG_ADDRESSES | NM_RDISC_CONFIG_ROUTES | + NM_RDISC_CONFIG_DNS_SERVERS | NM_RDISC_CONFIG_DNS_DOMAINS; + debug ("%d", rdisc->dhcp_level); + + g_signal_emit_by_name ( + rdisc, NM_RDISC_CONFIG_CHANGED, changed); +} + +static void +start (NMRDisc *rdisc) +{ + g_idle_add ((GSourceFunc) (delayed_start), rdisc); +} + +/******************************************************************/ + +static void +nm_fake_rdisc_init (NMFakeRDisc *fake_rdisc) +{ + NMRDisc *rdisc = NM_RDISC (fake_rdisc); + NMRDiscGateway gateway; + NMRDiscAddress address; + NMRDiscRoute route; + NMRDiscDNSServer dns_server; + NMRDiscDNSDomain dns_domain; + + rdisc->dhcp_level = NM_RDISC_DHCP_LEVEL_NONE; + + memset (&gateway, 0, sizeof (gateway)); + inet_pton (AF_INET6, "fe80::1", &gateway.address); + g_array_append_val (rdisc->gateways, gateway); + inet_pton (AF_INET6, "fe80::2", &gateway.address); + g_array_append_val (rdisc->gateways, gateway); + inet_pton (AF_INET6, "fe80::3", &gateway.address); + g_array_append_val (rdisc->gateways, gateway); + + memset (&address, 0, sizeof (address)); + inet_pton (AF_INET6, "2001:db8:a:a::1", &address.address); + g_array_append_val (rdisc->addresses, address); + inet_pton (AF_INET6, "2001:db8:a:a::2", &address.address); + g_array_append_val (rdisc->addresses, address); + inet_pton (AF_INET6, "2001:db8:f:f::1", &address.address); + g_array_append_val (rdisc->addresses, address); + + memset (&route, 0, sizeof (route)); + route.plen = 64; + inet_pton (AF_INET6, "2001:db8:a:a::", &route.network); + g_array_append_val (rdisc->routes, route); + inet_pton (AF_INET6, "2001:db8:b:b::", &route.network); + g_array_append_val (rdisc->routes, route); + + memset (&dns_server, 0, sizeof (dns_server)); + inet_pton (AF_INET6, "2001:db8:c:c::1", &dns_server.address); + g_array_append_val (rdisc->dns_servers, dns_server); + inet_pton (AF_INET6, "2001:db8:c:c::2", &dns_server.address); + g_array_append_val (rdisc->dns_servers, dns_server); + inet_pton (AF_INET6, "2001:db8:c:c::3", &dns_server.address); + g_array_append_val (rdisc->dns_servers, dns_server); + inet_pton (AF_INET6, "2001:db8:c:c::4", &dns_server.address); + g_array_append_val (rdisc->dns_servers, dns_server); + inet_pton (AF_INET6, "2001:db8:c:c::5", &dns_server.address); + g_array_append_val (rdisc->dns_servers, dns_server); + + memset (&dns_domain, 0, sizeof (dns_domain)); + dns_domain.domain = g_strdup ("example.net"); + g_array_append_val (rdisc->dns_domains, dns_domain); + dns_domain.domain = g_strdup ("example.com"); + g_array_append_val (rdisc->dns_domains, dns_domain); + dns_domain.domain = g_strdup ("example.org"); + g_array_append_val (rdisc->dns_domains, dns_domain); +} + +static void +nm_fake_rdisc_class_init (NMFakeRDiscClass *klass) +{ + NMRDiscClass *rdisc_class = NM_RDISC_CLASS (klass); + + rdisc_class->start = start; +} diff --git a/src/rdisc/nm-fake-rdisc.h b/src/rdisc/nm-fake-rdisc.h new file mode 100644 index 00000000..248283b2 --- /dev/null +++ b/src/rdisc/nm-fake-rdisc.h @@ -0,0 +1,49 @@ +/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */ +/* nm-fake-rdisc.h - Fake implementation of router discovery + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Copyright (C) 2013 Red Hat, Inc. + */ + +#ifndef NM_FAKE_RDISC_H +#define NM_FAKE_RDISC_H + +#include "nm-rdisc.h" + +#define NM_TYPE_FAKE_RDISC (nm_fake_rdisc_get_type ()) +#define NM_FAKE_RDISC(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), NM_TYPE_FAKE_RDISC, NMFakeRDisc)) +#define NM_FAKE_RDISC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), NM_TYPE_FAKE_RDISC, NMFakeRDiscClass)) +#define NM_IS_FAKE_RDISC(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), NM_TYPE_FAKE_RDISC)) +#define NM_IS_FAKE_RDISC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), NM_TYPE_FAKE_RDISC)) +#define NM_FAKE_RDISC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), NM_TYPE_FAKE_RDISC, NMFakeRDiscClass)) + +/******************************************************************/ + +typedef struct { + NMRDisc parent; +} NMFakeRDisc; + +typedef struct { + NMRDiscClass parent; +} NMFakeRDiscClass; + +/******************************************************************/ + +GType nm_fake_rdisc_get_type (void); + +NMRDisc *nm_fake_rdisc_new (int ifindex, const char *ifname); + +#endif /* NM_FAKE_RDISC_H */ diff --git a/src/rdisc/nm-lndp-rdisc.c b/src/rdisc/nm-lndp-rdisc.c new file mode 100644 index 00000000..cf0267d1 --- /dev/null +++ b/src/rdisc/nm-lndp-rdisc.c @@ -0,0 +1,700 @@ +/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */ +/* nm-lndp-rdisc.c - Router discovery implementation using libndp + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Copyright (C) 2013 Red Hat, Inc. + */ + +#include <string.h> +#include <arpa/inet.h> +/* stdarg.h included because of a bug in ndp.h */ +#include <stdarg.h> +#include <ndp.h> + +#include "nm-lndp-rdisc.h" + +#include "NetworkManagerUtils.h" +#include "nm-logging.h" + +#define debug(...) nm_log_dbg (LOGD_IP6, __VA_ARGS__) +#define warning(...) nm_log_warn (LOGD_IP6, __VA_ARGS__) +#define error(...) nm_log_err (LOGD_IP6, __VA_ARGS__) + +typedef struct { + struct ndp *ndp; + + guint send_rs_id; + GIOChannel *event_channel; + guint event_id; + guint timeout_id; + + int solicitations_left; +} NMLNDPRDiscPrivate; + +#define NM_LNDP_RDISC_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_LNDP_RDISC, NMLNDPRDiscPrivate)) + +G_DEFINE_TYPE (NMLNDPRDisc, nm_lndp_rdisc, NM_TYPE_RDISC) + +/******************************************************************/ + +static inline gint32 +ipv6_sysctl_get (const char *ifname, const char *property, gint32 defval) +{ + return nm_platform_sysctl_get_int32 (nm_utils_ip6_property_path (ifname, property), defval); +} + +NMRDisc * +nm_lndp_rdisc_new (int ifindex, const char *ifname) +{ + NMRDisc *rdisc; + NMLNDPRDiscPrivate *priv; + int error; + + rdisc = g_object_new (NM_TYPE_LNDP_RDISC, NULL); + + rdisc->ifindex = ifindex; + rdisc->ifname = g_strdup (ifname); + + rdisc->max_addresses = ipv6_sysctl_get (ifname, "max_addresses", + NM_RDISC_MAX_ADDRESSES_DEFAULT); + rdisc->rtr_solicitations = ipv6_sysctl_get (ifname, "router_solicitations", + NM_RDISC_RTR_SOLICITATIONS_DEFAULT); + rdisc->rtr_solicitation_interval = ipv6_sysctl_get (ifname, "router_solicitation_interval", + NM_RDISC_RTR_SOLICITATION_INTERVAL_DEFAULT); + + priv = NM_LNDP_RDISC_GET_PRIVATE (rdisc); + error = ndp_open (&priv->ndp); + if (error != 0) { + g_object_unref (rdisc); + debug ("(%s): error creating socket for NDP; errno=%d", ifname, -error); + return NULL; + } + return rdisc; +} + +static gboolean +add_gateway (NMRDisc *rdisc, const NMRDiscGateway *new) +{ + int i; + + for (i = 0; i < rdisc->gateways->len; i++) { + NMRDiscGateway *item = &g_array_index (rdisc->gateways, NMRDiscGateway, i); + + if (IN6_ARE_ADDR_EQUAL (&item->address, &new->address)) { + if (item->preference != new->preference) { + g_array_remove_index (rdisc->gateways, i--); + continue; + } + memcpy (item, new, sizeof (*new)); + return FALSE; + } + + /* Put before less preferable gateways. */ + if (item->preference < new->preference) + break; + } + + g_array_insert_val (rdisc->gateways, i, *new); + return TRUE; +} + +static gboolean +add_address (NMRDisc *rdisc, const NMRDiscAddress *new) +{ + int i; + + for (i = 0; i < rdisc->addresses->len; i++) { + NMRDiscAddress *item = &g_array_index (rdisc->addresses, NMRDiscAddress, i); + + if (IN6_ARE_ADDR_EQUAL (&item->address, &new->address)) { + gboolean changed = item->timestamp + item->lifetime != new->timestamp + new->lifetime || + item->timestamp + item->preferred != new->timestamp + new->preferred; + + *item = *new; + return changed; + } + } + + /* we create at most max_addresses autoconf addresses. This is different from + * what the kernel does, because it considers *all* addresses (including + * static and other temporary addresses). + **/ + if (rdisc->max_addresses && rdisc->addresses->len >= rdisc->max_addresses) + return FALSE; + + g_array_insert_val (rdisc->addresses, i, *new); + return TRUE; +} + +static gboolean +add_route (NMRDisc *rdisc, const NMRDiscRoute *new) +{ + int i; + + for (i = 0; i < rdisc->routes->len; i++) { + NMRDiscRoute *item = &g_array_index (rdisc->routes, NMRDiscRoute, i); + + if (IN6_ARE_ADDR_EQUAL (&item->network, &new->network) && item->plen == new->plen) { + if (item->preference != new->preference) { + g_array_remove_index (rdisc->routes, i--); + continue; + } + memcpy (item, new, sizeof (*new)); + return FALSE; + } + + /* Put before less preferable routes. */ + if (item->preference < new->preference) + break; + } + + g_array_insert_val (rdisc->routes, i, *new); + return TRUE; +} + +static gboolean +add_dns_server (NMRDisc *rdisc, const NMRDiscDNSServer *new) +{ + int i; + + for (i = 0; i < rdisc->dns_servers->len; i++) { + NMRDiscDNSServer *item = &g_array_index (rdisc->dns_servers, NMRDiscDNSServer, i); + + if (IN6_ARE_ADDR_EQUAL (&item->address, &new->address)) { + gboolean changed = item->timestamp != new->timestamp || + item->lifetime != new->lifetime; + if (changed) { + item->timestamp = new->timestamp; + item->lifetime = new->lifetime; + } + return changed; + } + } + + /* DNS server should no longer be used */ + if (new->lifetime == 0) + return FALSE; + + g_array_insert_val (rdisc->dns_servers, i, *new); + return TRUE; +} + +/* Copies new->domain if 'new' is added to the dns_domains list */ +static gboolean +add_dns_domain (NMRDisc *rdisc, const NMRDiscDNSDomain *new) +{ + NMRDiscDNSDomain *item; + int i; + + for (i = 0; i < rdisc->dns_domains->len; i++) { + item = &g_array_index (rdisc->dns_domains, NMRDiscDNSDomain, i); + + if (!g_strcmp0 (item->domain, new->domain)) { + gboolean changed = item->timestamp != new->timestamp || + item->lifetime != new->lifetime; + if (changed) { + item->timestamp = new->timestamp; + item->lifetime = new->lifetime; + } + return changed; + } + } + + /* Domain should no longer be used */ + if (new->lifetime == 0) + return FALSE; + + g_array_insert_val (rdisc->dns_domains, i, *new); + item = &g_array_index (rdisc->dns_domains, NMRDiscDNSDomain, i); + item->domain = g_strdup (new->domain); + return TRUE; +} + +static gboolean +send_rs (NMRDisc *rdisc) +{ + NMLNDPRDiscPrivate *priv = NM_LNDP_RDISC_GET_PRIVATE (rdisc); + struct ndp_msg *msg; + int error; + + error = ndp_msg_new (&msg, NDP_MSG_RS); + g_assert (!error); + ndp_msg_ifindex_set (msg, rdisc->ifindex); + + debug ("(%s): sending router solicitation", rdisc->ifname); + + error = ndp_msg_send (priv->ndp, msg); + if (error) + error ("(%s): cannot send router solicitation: %d.", rdisc->ifname, error); + else + priv->solicitations_left--; + + ndp_msg_destroy (msg); + + if (priv->solicitations_left > 0) { + debug ("(%s): scheduling router solicitation retry in %d seconds.", + rdisc->ifname, rdisc->rtr_solicitation_interval); + priv->send_rs_id = g_timeout_add_seconds (rdisc->rtr_solicitation_interval, + (GSourceFunc) send_rs, rdisc); + } else { + debug ("(%s): did not receive a router advertisement after %d solicitations.", + rdisc->ifname, rdisc->rtr_solicitations); + priv->send_rs_id = 0; + } + + return G_SOURCE_REMOVE; +} + +static void +solicit (NMRDisc *rdisc) +{ + NMLNDPRDiscPrivate *priv = NM_LNDP_RDISC_GET_PRIVATE (rdisc); + + if (!priv->send_rs_id) { + debug ("(%s): scheduling router solicitation.", rdisc->ifname); + priv->send_rs_id = g_idle_add ((GSourceFunc) send_rs, rdisc); + priv->solicitations_left = rdisc->rtr_solicitations; + } +} + +static void +clean_gateways (NMRDisc *rdisc, guint32 now, NMRDiscConfigMap *changed, guint32 *nextevent) +{ + int i; + + for (i = 0; i < rdisc->gateways->len; i++) { + NMRDiscGateway *item = &g_array_index (rdisc->gateways, NMRDiscGateway, i); + guint64 expiry = (guint64) item->timestamp + item->lifetime; + + if (item->lifetime == G_MAXUINT32) + continue; + + if (now >= expiry) { + g_array_remove_index (rdisc->gateways, i--); + *changed |= NM_RDISC_CONFIG_GATEWAYS; + } else if (*nextevent > expiry) + *nextevent = expiry; + } +} + +static void +clean_addresses (NMRDisc *rdisc, guint32 now, NMRDiscConfigMap *changed, guint32 *nextevent) +{ + int i; + + for (i = 0; i < rdisc->addresses->len; i++) { + NMRDiscAddress *item = &g_array_index (rdisc->addresses, NMRDiscAddress, i); + guint64 expiry = (guint64) item->timestamp + item->lifetime; + + if (item->lifetime == G_MAXUINT32) + continue; + + if (now >= expiry) { + g_array_remove_index (rdisc->addresses, i--); + *changed |= NM_RDISC_CONFIG_ADDRESSES; + } else if (*nextevent > expiry) + *nextevent = expiry; + } +} + +static void +clean_routes (NMRDisc *rdisc, guint32 now, NMRDiscConfigMap *changed, guint32 *nextevent) +{ + int i; + + for (i = 0; i < rdisc->routes->len; i++) { + NMRDiscRoute *item = &g_array_index (rdisc->routes, NMRDiscRoute, i); + guint64 expiry = (guint64) item->timestamp + item->lifetime; + + if (item->lifetime == G_MAXUINT32) + continue; + + if (now >= expiry) { + g_array_remove_index (rdisc->routes, i--); + *changed |= NM_RDISC_CONFIG_ROUTES; + } else if (*nextevent > expiry) + *nextevent = expiry; + } +} + +static void +clean_dns_servers (NMRDisc *rdisc, guint32 now, NMRDiscConfigMap *changed, guint32 *nextevent) +{ + int i; + + for (i = 0; i < rdisc->dns_servers->len; i++) { + NMRDiscDNSServer *item = &g_array_index (rdisc->dns_servers, NMRDiscDNSServer, i); + guint64 expiry = (guint64) item->timestamp + item->lifetime; + guint64 refresh = (guint64) item->timestamp + item->lifetime / 2; + + if (item->lifetime == G_MAXUINT32) + continue; + + if (now >= expiry) { + g_array_remove_index (rdisc->dns_servers, i--); + *changed |= NM_RDISC_CONFIG_DNS_SERVERS; + } else if (now >= refresh) + solicit (rdisc); + else if (*nextevent > refresh) + *nextevent = refresh; + } +} + +static void +clean_dns_domains (NMRDisc *rdisc, guint32 now, NMRDiscConfigMap *changed, guint32 *nextevent) +{ + int i; + + for (i = 0; i < rdisc->dns_domains->len; i++) { + NMRDiscDNSDomain *item = &g_array_index (rdisc->dns_domains, NMRDiscDNSDomain, i); + guint64 expiry = (guint64) item->timestamp + item->lifetime; + guint64 refresh = (guint64) item->timestamp + item->lifetime / 2; + + if (item->lifetime == G_MAXUINT32) + continue; + + if (now >= expiry) { + g_free (item->domain); + g_array_remove_index (rdisc->dns_domains, i--); + *changed |= NM_RDISC_CONFIG_DNS_DOMAINS; + } else if (now >= refresh) + solicit (rdisc); + else if (*nextevent > refresh) + *nextevent = refresh; + } +} + +static gboolean timeout_cb (gpointer user_data); + +static void +check_timestamps (NMRDisc *rdisc, guint32 now, NMRDiscConfigMap changed) +{ + NMLNDPRDiscPrivate *priv = NM_LNDP_RDISC_GET_PRIVATE (rdisc); + /* Use a magic date in the distant future (~68 years) */ + guint32 never = G_MAXINT32; + guint32 nextevent = never; + + if (priv->timeout_id) { + g_source_remove (priv->timeout_id); + priv->timeout_id = 0; + } + + clean_gateways (rdisc, now, &changed, &nextevent); + clean_addresses (rdisc, now, &changed, &nextevent); + clean_routes (rdisc, now, &changed, &nextevent); + clean_dns_servers (rdisc, now, &changed, &nextevent); + clean_dns_domains (rdisc, now, &changed, &nextevent); + + if (changed) + g_signal_emit_by_name (rdisc, NM_RDISC_CONFIG_CHANGED, changed); + + if (nextevent != never) { + g_return_if_fail (nextevent > now); + debug ("(%s): scheduling next now/lifetime check: %u seconds", + rdisc->ifname, nextevent - now); + priv->timeout_id = g_timeout_add_seconds (nextevent - now, timeout_cb, rdisc); + } +} + +static gboolean +timeout_cb (gpointer user_data) +{ + check_timestamps (user_data, nm_utils_get_monotonic_timestamp_s (), 0); + + return TRUE; +} + +static NMRDiscPreference +translate_preference (enum ndp_route_preference preference) +{ + switch (preference) { + case NDP_ROUTE_PREF_LOW: + return NM_RDISC_PREFERENCE_LOW; + case NDP_ROUTE_PREF_MEDIUM: + return NM_RDISC_PREFERENCE_MEDIUM; + case NDP_ROUTE_PREF_HIGH: + return NM_RDISC_PREFERENCE_HIGH; + default: + return NM_RDISC_PREFERENCE_INVALID; + } +} + +static void +fill_address_from_mac (struct in6_addr *address, const char *mac) +{ + unsigned char *identifier = address->s6_addr + 8; + + if (!mac) + return; + + /* Translate 48-bit MAC address to a 64-bit modified interface identifier + * and write it to the second half of the IPv6 address. + * + * See http://tools.ietf.org/html/rfc3513#page-21 + */ + memcpy (identifier, mac, 3); + identifier[0] ^= 0x02; + identifier[3] = 0xff; + identifier[4] = 0xfe; + memcpy (identifier + 5, mac + 3, 3); +} + +static int +receive_ra (struct ndp *ndp, struct ndp_msg *msg, gpointer user_data) +{ + NMRDisc *rdisc = (NMRDisc *) user_data; + NMLNDPRDiscPrivate *priv = NM_LNDP_RDISC_GET_PRIVATE (rdisc); + NMRDiscConfigMap changed = 0; + size_t lladdrlen = 0; + const char *lladdr = NULL; + struct ndp_msgra *msgra = ndp_msgra (msg); + NMRDiscGateway gateway; + guint32 now = nm_utils_get_monotonic_timestamp_s (); + int offset; + int hop_limit; + + if (rdisc->lladdr) + lladdr = g_bytes_get_data (rdisc->lladdr, &lladdrlen); + + /* Router discovery is subject to the following RFC documents: + * + * http://tools.ietf.org/html/rfc4861 + * http://tools.ietf.org/html/rfc4862 + * + * The biggest difference from good old DHCP is that all configuration + * items have their own lifetimes and they are merged from various + * sources. Router discovery is *not* contract-based, so there is *no* + * single time when the configuration is finished and updates can + * come at any time. + */ + debug ("(%s): received router advertisement at %u", rdisc->ifname, now); + + if (priv->send_rs_id) { + g_source_remove (priv->send_rs_id); + priv->send_rs_id = 0; + } + + /* DHCP level: + * + * The problem with DHCP level is what to do if subsequent + * router advertisements carry different flags. Currently we just + * rewrite the flag with every inbound RA. + */ + { + NMRDiscDHCPLevel dhcp_level; + + if (ndp_msgra_flag_managed (msgra)) + dhcp_level = NM_RDISC_DHCP_LEVEL_MANAGED; + else if (ndp_msgra_flag_other (msgra)) + dhcp_level = NM_RDISC_DHCP_LEVEL_OTHERCONF; + else + dhcp_level = NM_RDISC_DHCP_LEVEL_NONE; + + if (dhcp_level != rdisc->dhcp_level) { + rdisc->dhcp_level = dhcp_level; + changed |= NM_RDISC_CONFIG_DHCP_LEVEL; + } + } + + /* Default gateway: + * + * Subsequent router advertisements can represent new default gateways + * on the network. We should present all of them in router preference + * order. + */ + memset (&gateway, 0, sizeof (gateway)); + gateway.address = *ndp_msg_addrto (msg); + gateway.timestamp = now; + gateway.lifetime = ndp_msgra_router_lifetime (msgra); + gateway.preference = translate_preference (ndp_msgra_route_preference (msgra)); + if (add_gateway (rdisc, &gateway)) + changed |= NM_RDISC_CONFIG_GATEWAYS; + + /* Addresses & Routes */ + ndp_msg_opt_for_each_offset (offset, msg, NDP_MSG_OPT_PREFIX) { + NMRDiscRoute route; + NMRDiscAddress address; + + /* Device route */ + memset (&route, 0, sizeof (route)); + route.plen = ndp_msg_opt_prefix_len (msg, offset); + nm_utils_ip6_address_clear_host_address (&route.network, ndp_msg_opt_prefix (msg, offset), route.plen); + route.timestamp = now; + if (ndp_msg_opt_prefix_flag_on_link (msg, offset)) { + route.lifetime = ndp_msg_opt_prefix_valid_time (msg, offset); + if (add_route (rdisc, &route)) + changed |= NM_RDISC_CONFIG_ROUTES; + } + + /* Address */ + if (ndp_msg_opt_prefix_flag_auto_addr_conf (msg, offset)) { + if (route.plen == 64 && lladdrlen == 6) { + memset (&address, 0, sizeof (address)); + address.address = route.network; + address.timestamp = now; + address.lifetime = ndp_msg_opt_prefix_valid_time (msg, offset); + address.preferred = ndp_msg_opt_prefix_preferred_time (msg, offset); + if (address.preferred > address.lifetime) + address.preferred = address.lifetime; + + fill_address_from_mac (&address.address, lladdr); + + if (add_address (rdisc, &address)) + changed |= NM_RDISC_CONFIG_ADDRESSES; + } + } + } + ndp_msg_opt_for_each_offset(offset, msg, NDP_MSG_OPT_ROUTE) { + NMRDiscRoute route; + + /* Routers through this particular gateway */ + memset (&route, 0, sizeof (route)); + route.gateway = gateway.address; + route.plen = ndp_msg_opt_route_prefix_len (msg, offset); + nm_utils_ip6_address_clear_host_address (&route.network, ndp_msg_opt_route_prefix (msg, offset), route.plen); + route.timestamp = now; + route.lifetime = ndp_msg_opt_route_lifetime (msg, offset); + route.preference = translate_preference (ndp_msg_opt_route_preference (msg, offset)); + if (add_route (rdisc, &route)) + changed |= NM_RDISC_CONFIG_ROUTES; + } + + /* DNS information */ + ndp_msg_opt_for_each_offset(offset, msg, NDP_MSG_OPT_RDNSS) { + static struct in6_addr *addr; + int addr_index; + + ndp_msg_opt_rdnss_for_each_addr (addr, addr_index, msg, offset) { + NMRDiscDNSServer dns_server; + + memset (&dns_server, 0, sizeof (dns_server)); + dns_server.address = *addr; + dns_server.timestamp = now; + dns_server.lifetime = ndp_msg_opt_rdnss_lifetime (msg, offset); + /* Pad the lifetime somewhat to give a bit of slack in cases + * where one RA gets lost or something (which can happen on unreliable + * links like WiFi where certain types of frames are not retransmitted). + * Note that 0 has special meaning and is therefore not adjusted. + */ + if (dns_server.lifetime && dns_server.lifetime < 7200) + dns_server.lifetime = 7200; + if (add_dns_server (rdisc, &dns_server)) + changed |= NM_RDISC_CONFIG_DNS_SERVERS; + } + } + ndp_msg_opt_for_each_offset(offset, msg, NDP_MSG_OPT_DNSSL) { + char *domain; + int domain_index; + + ndp_msg_opt_dnssl_for_each_domain (domain, domain_index, msg, offset) { + NMRDiscDNSDomain dns_domain; + + memset (&dns_domain, 0, sizeof (dns_domain)); + dns_domain.domain = domain; + dns_domain.timestamp = now; + dns_domain.lifetime = ndp_msg_opt_rdnss_lifetime (msg, offset); + /* Pad the lifetime somewhat to give a bit of slack in cases + * where one RA gets lost or something (which can happen on unreliable + * links like WiFi where certain types of frames are not retransmitted). + * Note that 0 has special meaning and is therefore not adjusted. + */ + if (dns_domain.lifetime && dns_domain.lifetime < 7200) + dns_domain.lifetime = 7200; + if (add_dns_domain (rdisc, &dns_domain)) + changed |= NM_RDISC_CONFIG_DNS_DOMAINS; + } + } + + hop_limit = ndp_msgra_curhoplimit (msgra); + if (rdisc->hop_limit != hop_limit) { + rdisc->hop_limit = hop_limit; + changed |= NM_RDISC_CONFIG_HOP_LIMIT; + } + + check_timestamps (rdisc, now, changed); + + return 0; +} + +static void +process_events (NMRDisc *rdisc) +{ + NMLNDPRDiscPrivate *priv = NM_LNDP_RDISC_GET_PRIVATE (rdisc); + + debug ("(%s): processing libndp events.", rdisc->ifname); + ndp_callall_eventfd_handler (priv->ndp); +} + +static gboolean +event_ready (GIOChannel *source, GIOCondition condition, NMRDisc *rdisc) +{ + process_events (rdisc); + + return TRUE; +} + +static void +start (NMRDisc *rdisc) +{ + NMLNDPRDiscPrivate *priv = NM_LNDP_RDISC_GET_PRIVATE (rdisc); + int fd = ndp_get_eventfd (priv->ndp); + + priv->event_channel = g_io_channel_unix_new (fd); + priv->event_id = g_io_add_watch (priv->event_channel, G_IO_IN, (GIOFunc) event_ready, rdisc); + + /* Flush any pending messages to avoid using obsolete information */ + process_events (rdisc); + + ndp_msgrcv_handler_register (priv->ndp, &receive_ra, NDP_MSG_RA, rdisc->ifindex, rdisc); + solicit (rdisc); +} + +/******************************************************************/ + +static void +nm_lndp_rdisc_init (NMLNDPRDisc *lndp_rdisc) +{ +} + +static void +nm_lndp_rdisc_finalize (GObject *object) +{ + NMLNDPRDiscPrivate *priv = NM_LNDP_RDISC_GET_PRIVATE (object); + + if (priv->send_rs_id) + g_source_remove (priv->send_rs_id); + if (priv->timeout_id) + g_source_remove (priv->timeout_id); + if (priv->event_channel) + g_io_channel_unref (priv->event_channel); + if (priv->event_id) + g_source_remove (priv->event_id); + + if (priv->ndp) + ndp_close (priv->ndp); +} + +static void +nm_lndp_rdisc_class_init (NMLNDPRDiscClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + NMRDiscClass *rdisc_class = NM_RDISC_CLASS (klass); + + g_type_class_add_private (klass, sizeof (NMLNDPRDiscPrivate)); + + object_class->finalize = nm_lndp_rdisc_finalize; + rdisc_class->start = start; +} diff --git a/src/rdisc/nm-lndp-rdisc.h b/src/rdisc/nm-lndp-rdisc.h new file mode 100644 index 00000000..eb6a1df6 --- /dev/null +++ b/src/rdisc/nm-lndp-rdisc.h @@ -0,0 +1,49 @@ +/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */ +/* nm-lndp-rdisc.h - Implementation of router discovery using libndp + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Copyright (C) 2013 Red Hat, Inc. + */ + +#ifndef NM_LNDP_RDISC_H +#define NM_LNDP_RDISC_H + +#include "nm-rdisc.h" + +#define NM_TYPE_LNDP_RDISC (nm_lndp_rdisc_get_type ()) +#define NM_LNDP_RDISC(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), NM_TYPE_LNDP_RDISC, NMLNDPRDisc)) +#define NM_LNDP_RDISC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), NM_TYPE_LNDP_RDISC, NMLNDPRDiscClass)) +#define NM_IS_LNDP_RDISC(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), NM_TYPE_LNDP_RDISC)) +#define NM_IS_LNDP_RDISC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), NM_TYPE_LNDP_RDISC)) +#define NM_LNDP_RDISC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), NM_TYPE_LNDP_RDISC, NMLNDPRDiscClass)) + +/******************************************************************/ + +typedef struct { + NMRDisc parent; +} NMLNDPRDisc; + +typedef struct { + NMRDiscClass parent; +} NMLNDPRDiscClass; + +/******************************************************************/ + +GType nm_lndp_rdisc_get_type (void); + +NMRDisc *nm_lndp_rdisc_new (int ifindex, const char *ifname); + +#endif /* NM_LNDP_RDISC_H */ diff --git a/src/rdisc/nm-rdisc.c b/src/rdisc/nm-rdisc.c new file mode 100644 index 00000000..1682924c --- /dev/null +++ b/src/rdisc/nm-rdisc.c @@ -0,0 +1,191 @@ +/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */ +/* nm-rdisc.c - Perform IPv6 router discovery + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Copyright (C) 2013 Red Hat, Inc. + */ + +#include <stdlib.h> +#include <arpa/inet.h> + +#include "nm-rdisc.h" + +#include "nm-logging.h" +#include "nm-utils.h" + +#define debug(...) nm_log_dbg (LOGD_IP6, __VA_ARGS__) + +G_DEFINE_TYPE (NMRDisc, nm_rdisc, G_TYPE_OBJECT) + +enum { + CONFIG_CHANGED, + LAST_SIGNAL +}; + +static guint signals[LAST_SIGNAL] = { 0 }; + +/******************************************************************/ + +void +nm_rdisc_set_lladdr (NMRDisc *rdisc, const char *addr, size_t addrlen) +{ + if (rdisc->lladdr) + g_bytes_unref (rdisc->lladdr); + rdisc->lladdr = addr ? g_bytes_new (addr, addrlen) : NULL; +} + +void +nm_rdisc_start (NMRDisc *rdisc) +{ + NMRDiscClass *klass = NM_RDISC_GET_CLASS (rdisc); + + g_assert (klass->start); + + debug ("(%s): starting router discovery: %d", rdisc->ifname, rdisc->ifindex); + + if (klass->start) + klass->start (rdisc); +} + +#define CONFIG_MAP_MAX_STR 7 + +static void +config_map_to_string (NMRDiscConfigMap map, char *p) +{ + if (map & NM_RDISC_CONFIG_DHCP_LEVEL) + *p++ = 'd'; + if (map & NM_RDISC_CONFIG_GATEWAYS) + *p++ = 'G'; + if (map & NM_RDISC_CONFIG_ADDRESSES) + *p++ = 'A'; + if (map & NM_RDISC_CONFIG_ROUTES) + *p++ = 'R'; + if (map & NM_RDISC_CONFIG_DNS_SERVERS) + *p++ = 'S'; + if (map & NM_RDISC_CONFIG_DNS_DOMAINS) + *p++ = 'D'; + *p = '\0'; +} + +static const char * +dhcp_level_to_string (NMRDiscDHCPLevel dhcp_level) +{ + switch (dhcp_level) { + case NM_RDISC_DHCP_LEVEL_NONE: + return "none"; + case NM_RDISC_DHCP_LEVEL_OTHERCONF: + return "otherconf"; + case NM_RDISC_DHCP_LEVEL_MANAGED: + return "managed"; + default: + return "INVALID"; + } +} + +#define expiry(item) (item->timestamp + item->lifetime) + +static void +config_changed (NMRDisc *rdisc, NMRDiscConfigMap changed) +{ + int i; + char changedstr[CONFIG_MAP_MAX_STR]; + char addrstr[INET6_ADDRSTRLEN]; + + if (nm_logging_enabled (LOGL_DEBUG, LOGD_IP6)) { + config_map_to_string (changed, changedstr); + debug ("(%s): router discovery configuration changed [%s]:", rdisc->ifname, changedstr); + debug (" dhcp-level %s", dhcp_level_to_string (rdisc->dhcp_level)); + for (i = 0; i < rdisc->gateways->len; i++) { + NMRDiscGateway *gateway = &g_array_index (rdisc->gateways, NMRDiscGateway, i); + + inet_ntop (AF_INET6, &gateway->address, addrstr, sizeof (addrstr)); + debug (" gateway %s pref %d exp %u", addrstr, gateway->preference, expiry (gateway)); + } + for (i = 0; i < rdisc->addresses->len; i++) { + NMRDiscAddress *address = &g_array_index (rdisc->addresses, NMRDiscAddress, i); + + inet_ntop (AF_INET6, &address->address, addrstr, sizeof (addrstr)); + debug (" address %s exp %u", addrstr, expiry (address)); + } + for (i = 0; i < rdisc->routes->len; i++) { + NMRDiscRoute *route = &g_array_index (rdisc->routes, NMRDiscRoute, i); + + inet_ntop (AF_INET6, &route->network, addrstr, sizeof (addrstr)); + debug (" route %s/%d via %s pref %d exp %u", addrstr, route->plen, + nm_utils_inet6_ntop (&route->gateway, NULL), route->preference, + expiry (route)); + } + for (i = 0; i < rdisc->dns_servers->len; i++) { + NMRDiscDNSServer *dns_server = &g_array_index (rdisc->dns_servers, NMRDiscDNSServer, i); + + inet_ntop (AF_INET6, &dns_server->address, addrstr, sizeof (addrstr)); + debug (" dns_server %s exp %u", addrstr, expiry (dns_server)); + } + for (i = 0; i < rdisc->dns_domains->len; i++) { + NMRDiscDNSDomain *dns_domain = &g_array_index (rdisc->dns_domains, NMRDiscDNSDomain, i); + + debug (" dns_domain %s exp %u", dns_domain->domain, expiry (dns_domain)); + } + } +} + +/******************************************************************/ + +static void +nm_rdisc_init (NMRDisc *rdisc) +{ + rdisc->gateways = g_array_new (FALSE, FALSE, sizeof (NMRDiscGateway)); + rdisc->addresses = g_array_new (FALSE, FALSE, sizeof (NMRDiscAddress)); + rdisc->routes = g_array_new (FALSE, FALSE, sizeof (NMRDiscRoute)); + rdisc->dns_servers = g_array_new (FALSE, FALSE, sizeof (NMRDiscDNSServer)); + rdisc->dns_domains = g_array_new (FALSE, FALSE, sizeof (NMRDiscDNSDomain)); + rdisc->lladdr = NULL; + rdisc->hop_limit = 64; +} + +static void +nm_rdisc_finalize (GObject *object) +{ + NMRDisc *rdisc = NM_RDISC (object); + + g_free (rdisc->ifname); + g_array_unref (rdisc->gateways); + g_array_unref (rdisc->addresses); + g_array_unref (rdisc->routes); + g_array_unref (rdisc->dns_servers); + g_array_unref (rdisc->dns_domains); + + if (rdisc->lladdr) + g_bytes_unref (rdisc->lladdr); +} + +static void +nm_rdisc_class_init (NMRDiscClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + + object_class->finalize = nm_rdisc_finalize; + + klass->config_changed = config_changed; + + signals[CONFIG_CHANGED] = g_signal_new ( + NM_RDISC_CONFIG_CHANGED, + G_OBJECT_CLASS_TYPE (klass), + G_SIGNAL_RUN_FIRST, + G_STRUCT_OFFSET (NMRDiscClass, config_changed), + NULL, NULL, NULL, + G_TYPE_NONE, 1, G_TYPE_INT); +} diff --git a/src/rdisc/nm-rdisc.h b/src/rdisc/nm-rdisc.h new file mode 100644 index 00000000..fba06bc2 --- /dev/null +++ b/src/rdisc/nm-rdisc.h @@ -0,0 +1,139 @@ +/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */ +/* nm-rdisc.h - Perform IPv6 router discovery + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Copyright (C) 2013 Red Hat, Inc. + */ + +#ifndef NM_RDISC_H +#define NM_RDISC_H + +#include <glib-object.h> + +#include <stdlib.h> +#include <netinet/in.h> + +#define NM_TYPE_RDISC (nm_rdisc_get_type ()) +#define NM_RDISC(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), NM_TYPE_RDISC, NMRDisc)) +#define NM_RDISC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), NM_TYPE_RDISC, NMRDiscClass)) +#define NM_IS_RDISC(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), NM_TYPE_RDISC)) +#define NM_IS_RDISC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), NM_TYPE_RDISC)) +#define NM_RDISC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), NM_TYPE_RDISC, NMRDiscClass)) + +#define NM_RDISC_CONFIG_CHANGED "config-changed" + +typedef enum { + NM_RDISC_DHCP_LEVEL_UNKNOWN, + NM_RDISC_DHCP_LEVEL_NONE, + NM_RDISC_DHCP_LEVEL_OTHERCONF, + NM_RDISC_DHCP_LEVEL_MANAGED +} NMRDiscDHCPLevel; + +typedef enum { + NM_RDISC_PREFERENCE_INVALID, + NM_RDISC_PREFERENCE_LOW, + NM_RDISC_PREFERENCE_MEDIUM, + NM_RDISC_PREFERENCE_HIGH +} NMRDiscPreference; + +typedef struct { + struct in6_addr address; + guint32 timestamp; + guint32 lifetime; + NMRDiscPreference preference; +} NMRDiscGateway; + +typedef struct { + struct in6_addr address; + guint32 timestamp; + guint32 lifetime; + guint32 preferred; +} NMRDiscAddress; + +typedef struct { + struct in6_addr network; + int plen; + struct in6_addr gateway; + guint32 timestamp; + guint32 lifetime; + NMRDiscPreference preference; +} NMRDiscRoute; + +typedef struct { + struct in6_addr address; + guint32 timestamp; + guint32 lifetime; +} NMRDiscDNSServer; + +typedef struct { + char *domain; + guint32 timestamp; + guint32 lifetime; +} NMRDiscDNSDomain; + +typedef enum { + NM_RDISC_CONFIG_DHCP_LEVEL = 1 << 0, + NM_RDISC_CONFIG_GATEWAYS = 1 << 1, + NM_RDISC_CONFIG_ADDRESSES = 1 << 2, + NM_RDISC_CONFIG_ROUTES = 1 << 3, + NM_RDISC_CONFIG_DNS_SERVERS = 1 << 4, + NM_RDISC_CONFIG_DNS_DOMAINS = 1 << 5, + NM_RDISC_CONFIG_HOP_LIMIT = 1 << 6, +} NMRDiscConfigMap; + +#define NM_RDISC_MAX_ADDRESSES_DEFAULT 16 +#define NM_RDISC_RTR_SOLICITATIONS_DEFAULT 3 +#define NM_RDISC_RTR_SOLICITATION_INTERVAL_DEFAULT 4 + +/** + * NMRDisc: + * @ifindex: Interface index + * + * Interface-specific structure that handles incoming router advertisements, + * caches advertised items and removes them when they are obsolete. + */ +typedef struct { + GObject parent; + + int ifindex; + char *ifname; + GBytes *lladdr; + gint32 max_addresses; + gint32 rtr_solicitations; + gint32 rtr_solicitation_interval; + + NMRDiscDHCPLevel dhcp_level; + GArray *gateways; + GArray *addresses; + GArray *routes; + GArray *dns_servers; + GArray *dns_domains; + int hop_limit; +} NMRDisc; + +typedef struct { + GObjectClass parent; + + void (*start) (NMRDisc *rdisc); + void (*config_changed) (NMRDisc *rdisc, NMRDiscConfigMap changed); +} NMRDiscClass; + +GType nm_rdisc_get_type (void); + +void nm_rdisc_set_lladdr (NMRDisc *rdisc, const char *addr, size_t addrlen); +void nm_rdisc_start (NMRDisc *rdisc); + +#endif /* NM_RDISC_H */ diff --git a/src/rdisc/tests/Makefile.am b/src/rdisc/tests/Makefile.am new file mode 100644 index 00000000..cf351d61 --- /dev/null +++ b/src/rdisc/tests/Makefile.am @@ -0,0 +1,36 @@ +AM_CPPFLAGS = \ + -I${top_srcdir} \ + -I$(top_srcdir)/include \ + -I$(top_builddir)/include \ + -I${top_srcdir}/src \ + -I${top_srcdir}/src/devices \ + -I${top_srcdir}/src/logging \ + -I${top_srcdir}/src/platform \ + -I${top_srcdir}/src/posix-signals \ + -I${top_srcdir}/libnm-util \ + -I${srcdir}/.. \ + -DG_LOG_DOMAIN=\""NetworkManager"\" \ + -DNM_VERSION_MAX_ALLOWED=NM_VERSION_NEXT_STABLE \ + $(GLIB_CFLAGS) \ + $(DBUS_CFLAGS) \ + $(POLKIT_CFLAGS) \ + $(LIBNL_CFLAGS) \ + $(LIBNDP_CFLAGS) + +AM_CFLAGS = $(CODE_COVERAGE_CFLAGS) +AM_LDFLAGS = \ + $(GLIB_LIBS) \ + $(DBUS_LIBS) \ + $(CODE_COVERAGE_LDFLAGS) + +@GNOME_CODE_COVERAGE_RULES@ + +noinst_PROGRAMS = \ + rdisc + +rdisc_SOURCES = \ + rdisc.c +rdisc_LDADD = \ + $(top_builddir)/src/libNetworkManager.la \ + $(LIBNDP_LIBS) + diff --git a/src/rdisc/tests/Makefile.in b/src/rdisc/tests/Makefile.in new file mode 100644 index 00000000..97ade88f --- /dev/null +++ b/src/rdisc/tests/Makefile.in @@ -0,0 +1,755 @@ +# Makefile.in generated by automake 1.13.4 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2013 Free Software Foundation, Inc. + +# This Makefile.in is free software; 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is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Copyright (C) 2013 Red Hat, Inc. + */ + +#include <string.h> +#include <syslog.h> + +#include "nm-rdisc.h" +#include "nm-fake-rdisc.h" +#include "nm-lndp-rdisc.h" +#include "nm-logging.h" + +#include "nm-fake-platform.h" +#include "nm-linux-platform.h" + +int +main (int argc, char **argv) +{ + GMainLoop *loop; + NMRDisc *rdisc; + NMRDisc *(*new) (int ifindex, const char *ifname); + int ifindex = 1; + const char *ifname; + char mac[6] = { 0x02, 0xaa, 0xbb, 0xcc, 0xdd, 0xee }; + +#if !GLIB_CHECK_VERSION (2, 35, 0) + g_type_init (); +#endif + + loop = g_main_loop_new (NULL, FALSE); + nm_logging_setup ("debug", "ip6", NULL, NULL); + openlog (G_LOG_DOMAIN, LOG_CONS | LOG_PERROR, LOG_DAEMON); + + argv++; + if (!g_strcmp0 (argv[0], "--fake")) { + new = nm_fake_rdisc_new; + nm_fake_platform_setup (); + argv++; + } else { + new = nm_lndp_rdisc_new; + nm_linux_platform_setup (); + } + + if (argv[0]) { + ifname = argv[0]; + ifindex = nm_platform_link_get_ifindex (ifname); + } else { + ifindex = 1; + ifname = nm_platform_link_get_name (ifindex); + } + + rdisc = new (ifindex, ifname); + if (!rdisc) + return EXIT_FAILURE; + + nm_rdisc_set_lladdr (rdisc, mac, 6); + + nm_rdisc_start (rdisc); + g_main_loop_run (loop); + + g_clear_object (&rdisc); + + return EXIT_SUCCESS; +} |